To answer the tu bav questions:
The girls all said the bochurim should choose for lofty reasons. Then they divided into groups:
The pretty ones felt that since they were spiritually beautiful, this radiated and was reflected physically as well. That’s why they said they were beautiful as a maala.
The yichus ones were advocating the fact they came from fine families gave them fine values which they would in turn imbue their kids with.
The ugly ones is a thing on its own – gotta run but if you want to hear I’ll write up